Check the listing for details. Tannin Powder, 1lb. Condition: New. Listed at 13.49 USD. Tannin is an important component in wine and other beverages. In grapes, it is concentrated in the skins, seeds and stems and is extracted into the wine when the grapes are crushed or when wine is fermented in contact with the skins. It's dry bitterness balances the sweetness of the fruit creating a more rounded flavor. Tannin can also improve clarity and improve aging by removing excessive proteins from the wine. Made from chestnut wood. Net Weight: 1lb (454g) Variety: Chestnut Wood Usage: - Usage varies depending on taste and original tannin content of juice or wine. Tannin may be used to supplement low tannin fruit or to add balance to overly sweet wines.- White/Rosé Wine: 1/4 teaspoon/1 US gallon- Red Wine: 1/3 teaspoon/1 US gallon- Fruit Wine: 1/2 teaspoon/1 US gallon